Port 649
cadview-3d · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | cadview-3d |
Frequently asked questions
What is port 649 used for?
Port 649 is registered with the IANA for cadview-3d (TCP/UDP). Description: Cadview-3d - streaming 3d models over the internet.
Is port 649 a well-known port?
Yes. Port 649 is in the range 0–1023 (system or well-known ports). On Linux and macOS only privileged processes may bind to these ports.
How do I check whether port 649 is open?
Locally on Linux with ss -tulpn | grep ':649\b', on Windows with netstat -ano | findstr :649. To test a remote host use Test-NetConnection <host> -Port 649 in PowerShell or nc -zv <host> 649 on Linux/macOS.
How do I open port 649 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 649/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=649/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 649" -Direction Inbound -Protocol TCP -LocalPort 649 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | cadview-3d | Cadview-3d - streaming 3d models over the internet |
| UDP | cadview-3d | Cadview-3d - streaming 3d models over the internet |